SUPERNIGHT Samsung Galaxy Tab 3 10.1 & Tab 4 10.1 Case with Keyboard - Ultra Slim Detachable Bluetooth Keyboard Portfolio Leather Case Cover for Samsung Tab 3 & Tab 4 10.1" Inch P5200 T530 T531 T535 Tablet , Black Color SUPERNIGHT Designed Specifically for Samsung Galaxy Tab 4 10.1 inch tablet (2014 Sale,SM-T530 SM-T531 SM-T535). 3-in-1 functionality: Bluetooth V3.0 keyboard + Stand + Premium Leather Case High quality leather with removable wireless keyboard style shows a smooth appearance and protects Tablet PC from inner to outside. Real laptop-style keyboard, giving you better typing experience than silicone keyboard as other cases Precise cut-off provides full access to all ports and features,Charging time 2.5 - 3 hours; Estimated uninterrupted working time 60 hours